Multiple choice

Cancer cells are characterized by

  1. uncontrolled growth

  2. invasion of local tissue

  3. spreading to other body parts

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cancer is characterized by uncontrolled growth and division of cells. Abnormal and persistent cell division localized in a particular region is called benign tumour. Tumour cells may be carried by blood steam or lymph or penetrate directly to other parts of the tissue resulting in dangerous malignant tumour. The spread of cancerous cells to distant sites is termed as metastasis. 

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